SOLUTION: multiply (6+2i)^2=(6+2i)(6+2i) =6^2+6(2i)+6(2i)+(2i)^2 =36+12i+12i+4(i^2) =36+14i+4(-1) Note:i^2=-1 =36

Algebra ->  Radicals -> SOLUTION: multiply (6+2i)^2=(6+2i)(6+2i) =6^2+6(2i)+6(2i)+(2i)^2 =36+12i+12i+4(i^2) =36+14i+4(-1) Note:i^2=-1 =36      Log On


   

Question 136421: multiply (6+2i)^2=(6+2i)(6+2i)
=6^2+6(2i)+6(2i)+(2i)^2
=36+12i+12i+4(i^2)
=36+14i+4(-1) Note:i^2=-1
=36+14i-4
=36-4+14i
=32+14i
Answer by tns_tutor5000(9) About Me  (Show Source):